With the exception of the D.C. degree, schools accredited by the National
Chiropractic Association no longer issue these degrees. The Western States
College, for example, discontinued the B.T.A. degree in January 1957. Chiropractors
can, however, acquire some of the above degrees by taking post-graduate
courses in naturopathic schools. The Palmer School of Chiropractic still
confers the Ph.C. degree.

"To secure a degree of Doctor of Philosophy of Chiropractic (Ph.C.),"
a 1958 Palmer catalog advises, "the applicant must be a Doctor of Chiropractic,
having received such degree from a reputable Chiropractic school or college,
and he must furnish evidence that he maintained an average grade of 'A',
with no grade lower than B, while in attendance at said school or college.
The charge for the Ph.C. diploma is five dollars." [1] A 1963 catalog
stated that a Ph.C. candidate must complete a nine-month graduate course
in a special college department, during which time he completes a research
project and a thesis.

The Los Angeles College of Chiropractic offers a graduate program-to
anyone with a D.C. degree-leading to the degrees "master of science"
and "doctor of science in chiropractic." "Master's degrees
are granted on completion of 14 units of work (30 hours of classwork per
unit) and doctor's degrees on a minimum of 60 units of course work. No records
were available on the number of graduate degrees conferred by LACC."
[2]

References

1. Catalogue of the Palmer School of Chiropractic. Davenport, Iowa,
1958.